package server;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

/**
 * 把请求信息封装为Request对象（根据InputSteam输入流封装）
 */
public class Request {

    private String method; // 请求方式，比如GET/POST
    private String url;  // 例如 /,/index.html

    private Map<String, String> headers = new HashMap<>();

    private InputStream inputStream;  // 输入流，其他属性从输入流中解析出来


    public String getMethod() {
        return method;
    }

    public void setMethod(String method) {
        this.method = method;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public InputStream getInputStream() {
        return inputStream;
    }

    public void setInputStream(InputStream inputStream) {
        this.inputStream = inputStream;
    }

    public String getHeader(String key) {
        return headers.get(key);
    }

    public void setHeader(String key, String value) {
        headers.put(key, value);
    }

    public Request() {
    }


    // 构造器，输入流传入
    public Request(InputStream inputStream) throws IOException {
        this.inputStream = inputStream;

        // 从输入流中获取请求信息
        int count = 0;
        while (count == 0) {
            count = inputStream.available();
        }

        byte[] bytes = new byte[count];
        inputStream.read(bytes);

        String inputStr = new String(bytes);

        String[] text = inputStr.split("\\r\\n");
        // 获取第一行请求头信息
        String firstLineStr = text[0];  // GET / HTTP/1.1

        String[] strings = firstLineStr.split(" ");

        this.method = strings[0];
        this.url = strings[1];

        System.out.println("=====>>method:" + method);
        System.out.println("=====>>url:" + url);

        // 解析头部
        for (int i = 1; i < text.length; i++) {
            if (text[i].length() == 0) {
                // 默认没有body
                break;
            }

            String[] header = text[i].split(": ");

            headers.putIfAbsent(header[0].toLowerCase(Locale.ROOT), header[1].trim());
        }
    }
}
